Yes, good question.
It’s expensive and my husband has spent soooo much money on it over the years. Meanwhile we have other things we need to pay for.
It smells terrible in the house regularly.
Never getting to spend time with your loved ones when they’re sober (not good for conversation, or problem solving, etc etc)
It’s constant, like any given time they will be in the shed for long periods of time, even in the middle of a movie my husband will go smoke again
Overeating due to be high which equals more money, time, and less health
My son could get in trouble while out and about smoking and having paraphernalia
Forgetfulness
To me, it is negative to have such a severe dependency.
I could keep going and list more but I think you get the point